You should wear a shirt with long sleeves _________ you get burnt in the sun.
He knows little of mathematics, of chemistry.
Discovering consists of seeing what everybody has seen and what nobody has thought.
—Did the policeman let you in?—No, I told him who I was.
He likes music so much that I think it right to buy him MP3 as birthday present.
I suggested not only _____ go to the meeting but also give a speech there.